Source Locations of Coronal Mass Ejections and the Large-Scale Solar Magnetic Field

日冕物质抛射源位置和大尺度太阳磁场

• 批准号: 9300792
• 负责人: David Webb
• 金额: $ 4.69万
• 依托单位: Boston College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-07-15 至 1995-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9300792&HistoricalAwards=false
• 关键词: Source; Locations; Coronal; Mass; Ejections

This project will study and classify the kinds of large-scale restructuring of the global solar field which are related to Coronal Mass Ejections (CMEs). CMEs involve large-scale restructuring of the corona and the ejection of large amounts of mass and energy into the heliosphere. However, we know very little about how or where CMEs originate or how they develop, so it is important to understand their relationship to the large-scale magnetic fields patterns near the solar surface and in the low corona. We propose a two-part approach to this problem. First, we will study the source locations of Skylab and SMM CMEs determined by mapping them onto synoptic maps for each solar rotation. Such maps are now available tracing the large-scale global magnetic fields from the photosphere, through the chromosphere, and into the corona. When stacked in time-series, such maps reveal large-scale patters of convergence, divergence and shear of the fields. Second, the locations of these CMEs will be compared with white light synoptic maps and daily coronagraphic images to determine the relationship of CMEs to preexisting coronal streamers. This project will enhance our understanding of the physics of solar activity, especially CMEs, of the structure and evolution of the corona, and or the propagation of large-scale disturbances through the heliosphere.

本项目将对大型建筑的类型进行研究和分类 全球太阳能领域的结构调整， 日冕物质抛射（CME） CME涉及大规模的 日冕的重组和大量的 质量和能量进入日球层 然而，我们所知甚少 关于日冕物质抛射的起源和发展， 重要的是要了解他们的关系， 太阳表面附近和低层的磁场模式 电晕。 我们提出了一个两部分的方法来解决这个问题。 一是 将研究天空实验室和SMM CME的源位置， 把它们映射到太阳每一次自转的天气图上。 等 地图现在可以追踪大规模的全球磁场 从光球层，通过色球层，进入 电晕。 当按时间序列叠加时，这些地图揭示了大规模的 场的会聚、发散和切变的模式。 其次，这些日冕物质抛射的位置将与白色进行比较 天气图和每日日冕图像，以确定 CME与先前存在的日冕流光的关系。 这 该项目将提高我们对太阳能物理学的理解 活动，特别是日冕物质抛射， 日冕和/或大规模扰动的传播， 日光层